(61)- 
ous and ftreightned in their Exit become hor,tho not adil- 
ally inflamed ; whence the TherrrKs or Hot Baths. 
That the flioocing of thefe Salts under Watermuft ne- 
ceffarilybe imperfeft^ becaufe waflic off before their faU 
growth, and that therefore no mature Vttrioly has yet been 
tbund in any Enghjh Spring,that he knows of. 
That from the flioocing of thefe Salts arifes a Vapour 
of the whole bodie of the Stone, in like manner as Wood 
or Plants are known to fteam out their whole andintire 
Rofm into the Air. 
Thar therefore thefe Vapours only Petrifie i becaufe 
they eafily penetrate as Spirits ; and alfo at the fame time 
themfelves where they penetrate^ as intire Subftan- 
ces. 
In handling of thefe matters , there are fome other 
particulars > which are new, and for which you are refer- 
ed to the Book it (elf: As the notion of the Pyrites > The 
Cryftals of ^<^^/^iVi?>^rexadly defcribedandfigured;that 
air Lead Or^ is naturally Silver ore; Way of diftilling the 
Sea Water into a potable & frefli liquor by Sea Plants &c» 
J OH, 
